Duffy is a Welsh singer-songwriter known for her soulful voice and pop music style. She gained fame in the late 2000s with her debut album, Rockferry, which included hit singles like "Mercy." Duffy's music often features themes of love and heartbreak, and she has received several awards for her work, including a Grammy Award. In addition to her music career, Duffy has also acted in films and television. She took a break from the music industry for several years but returned with new projects, continuing to influence the pop and soul genres. Her unique sound and emotional lyrics have earned her a dedicated fan base.